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Table 3 Baseline characteristics of participants according to FPG and HbA1c levels

From: The association between fasting plasma glucose and glycated hemoglobin in the prediabetes range and future development of hypertension

  Group 1
normal FPG, normal HbA1c (n = 2619)
Group 2
normal FPG, impaired HbA1c (n = 974)
Group 3
impaired FPG, normal HbA1c (n = 595)
Group 4
impaired FPG, impaired HbA1c
(n = 828)
Age (year)a,‡ 51.03 (9.73) 56.79 (9.84) 53.88 (9.15) 56.42 (8.79)
Male gender (%)b,‡ 1678 (64.1) 653 (67.3) 482 (81.1) 663 (80.3)
FPG (mg/dl)a 88.24 (7.49) 91.0 (8.31) 105.15 (5.05) 107.24 (6.25)
HbA1C %a 5.2 (3.7) 5.9 (3.7) 5.3 (3.5) 6.0 (3.6)
BMI 25.26 26.15 26.50 27.21
SBP (mmHg)a,‡ 117 (14) 121 (15) 123 (17) 124 (16)
DBP (mmHg)a 72 (10) 75 (10) 76 (11) 77 (10)
Statin use (%)b 75 (2.9) 46 (4.7) 18 (3.0) 42 (5.1)
Current smoker (%)b 387 (14.8) 163 (16.8) 58 (9.8) 121 (14.7)
Physically active (%)b 1995 (76.3) 705 (72.8) 425 (71.9) 609 (74.2)
LDL (mmole/l)a 122 (27) 122 (28) 123 (26) 121 (29)
HDL (mmole/l)a,‡ 52 (14) 50 (13) 47 (11) 47 (11)
Triglycerides (mmole/l)a, ‡ 113 (64) 123 (59) 129 (66) 137 (64)
  1. FPG fasting plasma glucose, BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure, LDL low-density lipoprotein, HDL high-density lipoprotein
  2. aValues are expressed as mean ± SD
  3. bValues are expressed as absolute number (percentage of group)
  4. p-value for trend < .05 for comparison between group 2 and group 3